package com.bootdo.common.controller;

import com.bootdo.common.utils.ShiroUtils;
import com.google.code.kaptcha.Constants;
import com.google.code.kaptcha.Producer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.IOException;

/**
 * @Description TODO
 * @Author guoyunfei
 * @Date 2018/11/7 15:25
 * @Version 1.0
 **/
@Controller
public class KaptchaController {

    @Autowired
    private Producer producer;

    @RequestMapping("captcha.jpg")
    public void captcha(HttpServletResponse response, HttpServletRequest request) throws IOException {
        response.setHeader("Cache-Control", "no-store, no-cache");
        response.setContentType("image/jpeg");
        //生成文字验证码
        String text = producer.createText();
        //生成图片验证码
        BufferedImage image = producer.createImage(text);
        //ShiroUtils.setSessionAttribute(Constants.KAPTCHA_SESSION_KEY, text);
        request.getSession().setAttribute(Constants.KAPTCHA_SESSION_KEY,text);
        ServletOutputStream out = response.getOutputStream();
        ImageIO.write(image, "jpg", out);
        out.flush();
        out.close();
    }


}
